美國Seracare腦脊髓液質(zhì)控品(Cerebral Spinal Fluid)
廣州健侖生物科技有限公司
廣州健侖長期供應(yīng)各種生物原料,主要代理品牌:美國Seracare、西班牙Certest、美國Fuller等等。
主要產(chǎn)品包括各種標準品、陽性對照品、單克隆抗原抗體。
其中常見的有:弓形蟲病、西尼羅河病毒、類風濕因子、瘧疾、麻疹、萊姆病、百日咳桿菌、大腸桿菌、鼠傷寒沙門氏菌、李斯特菌等陽性對照品。
美國Seracare腦脊髓液質(zhì)控品(Cerebral Spinal Fluid)
我司還提供其它進口或國產(chǎn)試劑盒:登革熱、瘧疾、流感、A鏈球菌、合胞病毒、腮病毒、乙腦、寨卡、黃熱病、基孔肯雅熱、克錐蟲病、違禁品濫用、肺炎球菌、軍團菌、化妝品檢測、食品安全檢測等試劑盒以及日本生研細菌分型診斷血清、德國SiFin診斷血清、丹麥SSI診斷血清等產(chǎn)品。
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【Seracare產(chǎn)品介紹】
編號
英文名稱
中文名稱
JL-FA-01
Amebiasis (AME)
阿米巴病
JL-FA-02
Allergens, Rast scores
過敏原,放射性過敏原吸收實驗。指對特定的人群引起免疫反應(yīng)或者過敏反應(yīng)的食品中的蛋白質(zhì)
JL-FA-03
Allergens, Rast scores negative
過敏原,放射性過敏原吸收實驗陰性
JL-FA-04
Anti-cyclic citrullinated peptide Antibody (CCP) Arthritis
抗環(huán)瓜氨酸肽抗體
JL-FA-05
ASCA Saccharomyces Cerevi
人抗釀酒酵母抗體(ASCA)
JL-FA-06
Aspergillis
麴菌病
JL-FA-07
Beta 2 Glycoprotein
2糖蛋白
JL-FA-08
Beta 2 Glycoprotein IgM
2糖蛋白 IGM
JL-FA-09
Bordela Pertussis
百日咳桿菌
JL-FA-10
Bordela Pertussis IgM
百日咳桿菌 IGM
JL-FA-11
C-ANCA
C-抗中性粒細胞胞漿抗體(ANCA)
JL-FA-12
Cardiolipin
心肌磷脂
JL-FA-13
Cardiolipin IgA
心肌磷脂 IGA
JL-FA-14
Cardiolipin IgG
心肌磷脂 IGG
JL-FA-15
Cardiolipin IgM
心肌磷脂 IGM
JL-FA-16
Cerebral Spinal Fluid
腦脊髓液
JL-FA-17
Chagas
恰加斯病/南美錐蟲
JL-FA-18
Chlamydia
衣原體
JL-FA-19
Chlamydia IgA
衣原體IGA
JL-FA-20
Chlamydia IgG
衣原體IGG
JL-FA-21
Chlamydia IgM
衣原體IGM
JL-FA-22
Chlamydia Neg
衣原體陰性
JL-FA-23
Clotting Factor C3
凝固因子C3
JL-FA-24
Clotting Factor C4
凝固因子C4
JL-FA-25
Coccidiodes
球孢菌
JL-FA-26
Cytomegalovirus (CMV) Neg
巨細胞病毒抗體陰性
JL-FA-27
CMV IgG
巨細胞病毒 IGG陽性
JL-FA-28
CMV IgM VCA
巨細胞病毒 IGM 陽性
JL-FA-29
C-Reactive Protein (CRP)
C-反應(yīng)蛋白質(zhì)
JL-FA-30
Dengue Fever
登革熱
JL-FA-31
Dengue Fever IgM
登革熱 IGM
JL-FA-32
DS (Double Stranded) DNA
雙鏈脫氧核糖核酸
JL-FA-33
EBNA (Epstein-Barr nuclear antigen) IgG
EB病毒核抗原 IGG
JL-FA-34
EBNA (Epstein-Barr nuclear antigen) IgM
EB病毒核抗原 IGM
JL-FA-35
Epstein Barr Virus (EBV) Negative Plasma
EB病毒陰性血漿
JL-FA-36
Epstein Barr Virus (EBV) EA IgM
EB病毒早期抗原 IGM
JL-FA-37
Epstein Barr Virus (EBV) VCA IgM
EB病毒殼蛋白 IGM
JL-FA-38
Epstein Barr Virus (EBV) EA IgG
EB病毒早期抗原 IGG
JL-FA-39
EMA (Endomysial Antibodies)
肌內(nèi)膜
JL-FA-40
Gliadin
麩蛋白,麥醇溶蛋白,麥膠蛋白
JL-FA-41
Gliadin IgG
麥醇溶蛋白 IGG
JL-FA-42
Gliadin IgA
麥醇溶蛋白 IGA
JL-FA-43
Glomerular basement Membrane (GBMA)
腎小球基底膜病
JL-FA-44
Helicobacter pylori IgA
幽門螺旋桿菌IGA
JL-FA-45
Helicobacter pylori IgG
幽門螺旋桿菌IGG
JL-FA-46
Helicobacter pylori IgM
幽門螺旋桿菌IGM
JL-FA-47
Helicobacter pylori Negative
幽門螺旋桿菌陰性
JL-FA-48
Helicobacter pylori Positive Plasma
幽門螺旋桿菌陰性血漿
JL-FA-49
Hepatitis A Virus (HAV) Pos. Plasma
甲型肝炎病毒陽性血漿
JL-FA-50
Hepatitis A Virus (HAV) IgM
甲型肝炎病毒IGM
JL-FA-51
Hepatitis B Core (HBc) IgG
乙型肝炎病毒核心 IGG
JL-FA-52
Hepatitis B Core (HBc) IgM
乙型肝炎病毒核心 IGM
JL-FA-53
Anti Hbe (Antibody to HBV antigen)
乙肝抗體
JL-FA-54
Hepatitis Delta Virus
丁型肝炎病毒
JL-FA-55
HBeAg (HBV e antigen)
乙肝 E抗原
JL-FA-56
anti-HBs (HBV surface antibody)
乙肝表面抗體
JL-FA-57
Hepatitis B (HBsAg) "Chronic"
乙型肝炎(乙肝表面抗原) 慢性病
JL-FA-58
HBsAg (HBV surface antigen) Serum
乙肝表面抗原血清
JL-FA-59
HBsAg (AD)
乙肝表面抗原(AD)
JL-FA-60
HBsAg (AY)
乙肝表面抗原(AY)
JL-FA-61
HBV Positive Plasma
乙肝陽性血漿
JL-FA-62
HBV DNA Plasma
乙肝DNA血漿
JL-FA-63
HBV DNA Serum
乙肝DNA血清
JL-FA-64
HBV DNA type A
A型 乙肝DNA
JL-FA-65
HBV DNA type B
B型 乙肝DNA
JL-FA-66
HBV DNA type C
C型 乙肝DNA
JL-FA-67
HBV DNA type D
D型 乙肝DNA
JL-FA-68
HBV DNA type E
E型 乙肝DNA
JL-FA-69
HBV DNA type F
F型 乙肝DNA
JL-FA-70
HBV Antibody HCV Antibody Plasma CO-INFECTED
乙肝和丙肝聯(lián)合感染血漿
JL-FA-71
HCV (Hepatitis C Virus) Antibody
丙型肝炎抗體
JL-FA-72
HCV Core Antigen Positive
丙肝核心抗原 陽性
JL-FA-73
HCV RNA PLASMA Genotype 1
基因1型丙肝RNA 血漿
JL-FA-74
HCV RNA PLASMA Genotype 2
基因2型丙肝RNA 血漿
JL-FA-75
HCV RNA PLASMA Genotype 3
基因3型丙肝RNA 血漿
JL-FA-76
HCV RNA PLASMA Genotype 4
基因4型丙肝RNA 血漿
JL-FA-77
HCV RNA PLASMA Genotype 5
基因5型丙肝RNA 血漿
JL-FA-78
HCV RNA PLASMA Genotype 6
基因6型丙肝RNA 血漿
JL-FA-79
HCV Riba single band
丙肝免疫印跡單波段
JL-FA-80
HCV RIBA Pos. (multiple bands)
丙肝免疫印跡陽性多波段
JL-FA-81
HCV Negative
丙肝陰性
JL-FA-82
HCV RNA Pos (quantitative)
丙肝RNA陽性(定量)
JL-FA-83
Hepatitis E
戊型肝炎
JL-FA-84
Herpes Simplex Virus (HSV)1/2 Positive Plasma
單純性皰疹病毒1/2陽性血漿
JL-FA-85
Herpes Simplex Virus (HSV) 1 Negative Plasma
單純性皰疹病毒1 陰性血漿
JL-FA-86
Herpes Simplex Virus (HSV) 1 IgG
單純性皰疹病毒1 IGG
JL-FA-87
Herpes Simplex Virus (HSV 1) IgM
單純性皰疹病毒1 IGM
JL-FA-88
Herpes Simplex Virus (HSV) 2 IgG
單純性皰疹病毒2 IGG
JL-FA-89
Herpes Simplex Virus (HSV) 2 IgM
單純性皰疹病毒2 IGG
JL-FA-90
Histone
組蛋白
JL-FA-91
Human Anti Mouse Ab (HAMA)
人抗鼠抗體
JL-FA-92
Human immunodeficiency virus (HIV) 1 Neg
HIV I 陰性
JL-FA-93
anti Human immunodeficiency virus (HIV) 1 Plasma
抗HIV I 血漿
JL-FA-94
anti Human immunodeficiency virus (HIV) 1 Serum
抗HIV I 血清
JL-FA-95
anti Human immunodeficiency virus (HIV) 2 Western Blot Tested
抗HIV 2 免疫印跡
JL-FA-96
anti Human immunodeficiency virus (HIV) 1/2 2 HIV (+)
抗HIV 1/2 2 HIV陽性
JL-FA-97
Human immunodeficiency virus (HIV) Ag
HIV抗原
JL-FA-98
HIV RNA (quantitative) Plasma
HIV RNA 定量血漿
JL-FA-99
HIV RNA (quantitative) Serum
HIV RNA 定量血清
JL-FA-100
HIV1 Subtype A
HIV1 亞型A
JL-FA-101
HIV1 Subtype B
HIV1 亞型B
JL-FA-102
HIV1 Subtype C
HIV1 亞型C
JL-FA-103
HIV1 Subtype D
HIV1 亞型D
JL-FA-104
HIV1 Subtype E
HIV1 亞型E
JL-FA-105
HIV1 Subtype F
HIV1 亞型F
JL-FA-106
HIV1 Subtype G
HIV1 亞型G
JL-FA-107
HIV1 Subtype H
HIV1 亞型H
JL-FA-108
HIV1 Subtype J
HIV1 亞型J
JL-FA-109
HIV1 Subtype K
HIV1 亞型K
JL-FA-110
HIV1 Group O
HIV1 亞型O
JL-FA-111
Human immunodeficiency virus (HIV) 2 Antibody Plasma
HIV 2 抗體血漿
JL-FA-112
Human immunodeficiency virus (HIV) 2 Antibody Serum
HIV 2 抗體血清
JL-FA-113
HPV (Human Papiloma Virus) Negative
人乳狀瘤病毒HPV陰性
JL-FA-114
HPV (Human Papiloma Virus) Positive
人乳狀瘤病毒HPV陽性
JL-FA-115
Human immunodeficiency virus (HIV) Antibody HCV Antibody Plasma COINFECTED
HIV 抗體 HCV
JL-FA-116
Human T-cell Lymphotropic Virus (HTLV) I/II
人嗜T淋巴細胞病毒(HTLV) I/II
JL-FA-117
Human T-cell Lymphotropic Virus (HTLV) I
人嗜T淋巴細胞病毒(HTLV) I
JL-FA-118
Human T-cell Lymphotropic Virus (HTLV) II
人嗜T淋巴細胞病毒(HTLV) II
JL-FA-119
Jo-1
多發(fā)性肌炎抗原JO-1
JL-FA-120
IgE 5,000 Ku/L
IgE 5,000 Ku/L
JL-FA-121
Legionella
軍團桿菌屬
JL-FA-122
Leptospira
軍團桿菌屬
JL-FA-123
Lyme Disease
萊姆(氏)病:蜱傳播的全身性疾病,常在夏季發(fā)生
JL-FA-124
Lyme IgG
萊姆(氏)病 IGG
JL-FA-125
Lyme IgM
萊姆(氏)病 IGM
JL-FA-126
Lyme Disease Neg
萊姆(氏)病 陰性
JL-FA-127
Malaria
瘧疾
JL-FA-128
Mononucleosis (infectious)
單核細胞增多癥(有傳染性的)
JL-FA-129
Mononucleosis Negative
單核細胞增多癥陰性
JL-FA-130
Measles Negative
麻疹 陰性
JL-FA-131
Measles IgG
麻疹 IGG
JL-FA-132
Measles IgM
麻疹 IGM
JL-FA-133
Microsomal Anti-thyroid peroxidase antibody (TPO) Positive Plasma Standard Titer (typically 1,000-3,000 IU/mL)
微粒體抗甲狀腺過氧化物酶抗體
JL-FA-134
Microsomal Anti-thyroid peroxidase antibody (TPO) Negative Plasma
微粒體抗甲狀腺過氧化物酶抗體
JL-FA-135
Anti-mitochondrial antibody (AMA)
抗線粒體抗體
JL-FA-136
Multiple Sclerosis
多發(fā)性硬化癥
JL-FA-137
Mumps IgG
流行性腮腺炎 IGG
JL-FA-138
Mumps Ab IgM
流行性腮腺炎抗體 IGM
JL-FA-139
Mumps Antibody Negative Plasma
流行性腮腺炎抗體陰性血漿
JL-FA-140
Mumps Antibody Negative Serum
流行性腮腺炎抗體陰性血清
JL-FA-141
Myeloma Plasma
骨髓瘤血漿
JL-FA-142
Myeloma IgA
骨髓瘤IGA
JL-FA-143
Myeloma IgE
骨髓瘤IGE
JL-FA-144
Myeloma IgG
骨髓瘤IGG
JL-FA-145
Myeloma IgM
骨髓瘤IGM
JL-FA-146
Mycoplasma
支原體
JL-FA-147
Mycoplasma Negative
支原體陰性
JL-FA-148
Mycoplasma IgG
支原體IGG
JL-FA-149
Mycoplasma IgM
支原體IGM
JL-FA-150
Mycoplasma PCR
支原體PCR
JL-FA-151
Normal Human Plasma
正常人血漿
JL-FA-152
Normal Human Serum
正常人血清
JL-FA-153
Nuclear Antibody Centromere
核抗體著絲粒
JL-FA-154
Nuclear Antibody, Speckled ANA
核抗體,斑點抗核抗體
JL-FA-155
Nuclear Antibody, Nucleolar ANA
核抗體,核仁抗核抗體
JL-FA-156
Nuclear Antibody, Homogeneous ANA
核抗體,同質(zhì)抗核抗體
JL-FA-157
Nuclear Antiobody, Speckled. (ANA) Negative
核抗體,斑點??购丝贵w陰性
JL-FA-158
P-ANCA (associated neutrophil cytoplasmic antibodies)
相關(guān)的嗜中性粒細胞胞漿抗體
JL-FA-159
Parietal Cell Antibody (PCA)
胃)壁細胞抗體
JL-FA-160
Parvo positive plasma
細小病毒陽性血漿
JL-FA-161
Parvo IgM
細小病毒 IGM
JL-FA-162
Parvo IgG
細小病毒 IGG
JL-FA-163
Parvo Negative Plasma
細小病毒陰性血漿
JL-FA-164
Parvo DNA positive
細小病毒 DNA 陽性
JL-FA-165
Phospholipid Positive Plasma
磷脂陽性血漿
JL-FA-166
Prothrombin
凝血酶原,凝血因子
JL-FA-167
Rheumatoid Factor (RF) 1000 IU/mL
類風濕因子 1000 IU/mL
JL-FA-168
Rheumatoid Factor (RF) 1001-2000 IU/mL
類風濕因子1001-2000 IU/mL
JL-FA-169
Rheumatoid Factor (RF) 2001-4000 IU/mL
類風濕因子 2001-4000 IU/mL
JL-FA-170
Rheumatoid Factor (RF) 4001-5000 IU/mL
類風濕因子 4001-5000 IU/mL
JL-FA-171
Rheumatoid Factor (RF) 5000 IU/mL
類風濕因子 5000 IU/mL
JL-FA-172
Ribonucleoprotein (RNP) Positive
核糖核蛋白陽性
JL-FA-173
Rubella Chimeric
風疹
JL-FA-174
Rubella Negative
風疹陰性
JL-FA-175
Rubella IgG
風疹I(lǐng)GG
JL-FA-176
Rubella IgM
風疹I(lǐng)GM
JL-FA-177
Rubeola Negative Plasma
風疹陰性血漿
JL-FA-178
Rubeola IgG
風疹I(lǐng)GG
JL-FA-179
Scleroderma (Scl-70) Pos
膠原沉著病,硬皮病,硬皮癥 陽性
JL-FA-180
Scleroderma (Scl-70) Negative
硬皮病陰性
JL-FA-181
Sickle Cell Fresh Whole Blood
鐮刀形紅細胞新鮮全血
JL-FA-182
Smith (SM)
抗Smith抗體陽性血清(SLE的特征性抗體)
JL-FA-183
SMITH RNP
抗RNP抗體陽性血清(SLE的特征性抗體)
JL-FA-184
Smooth Muscle (ASMA)
抗平滑肌抗體陽性血清
JL-FA-185
Sjogren syndrome antigen A (SSA) Positive
舍格倫綜合征或干燥綜合征抗原A 陽性
JL-FA-186
Sjogren syndrome antigen B (SSB) Positive
舍格倫綜合征抗原B 陽性
JL-FA-187
Sjogren syndrome antigen B (SSB) Negative
舍格倫綜合征抗原B陰性
JL-FA-188
Streptolysin O Ab (ASO)
鏈球菌溶血素O抗體
JL-FA-189
Syphilis (RPR - Rapid Plasma Reagin) Positive Plasma
梅毒(梅毒-快速血漿反應(yīng))陽性血漿
JL-FA-190
Syphilis (RPR - Rapid Plasma Reagin) Negative Plasma
梅毒(梅毒-快速血漿反應(yīng))陰性血漿
JL-FA-191
Syphilis/ATA/T. pallidum IgG
梅毒ATA/T,蒼白球IGG
JL-FA-192
Syphilis/ATA/T. pallidum IgM
梅毒ATA/T,蒼白球IGM
JL-FA-193
Systemic Lupus Erythematosus (SLE) Positive
全身性紅斑狼瘡陽性
JL-FA-194
Systemic Lupus Erythematosus (SLE) Negative
全身性紅斑狼瘡陰性
JL-FA-195
TG/TPO Positive (Standard Titer 1,000 - 3000 IU/mL)
甲狀腺球蛋白/甲狀腺過氧化物酶陽性
JL-FA-196
TG/TPO Negative
甲狀腺球蛋白/甲狀腺過氧化物酶陰性
JL-FA-197
TTG (Tissue Transglutaminase)
組織轉(zhuǎn)谷氨酰胺酶
JL-FA-198
TTG (Tissue Transglutaminase) IgA
組織轉(zhuǎn)谷氨酰胺酶 IGA
JL-FA-199
ToRCH (Toxo, Rubella, CMV, HSV) Positive
優(yōu)生優(yōu)育(弓形蟲,風疹,巨細胞,單胞)陽性
JL-FA-200
ToRCH (Toxo, Rubella, CMV, HSV) Negative
優(yōu)生優(yōu)育(弓形蟲,風疹,巨細胞,單胞)陰性
JL-FA-201
Toxoplasmosis (Toxo)
弓形蟲病
JL-FA-202
Toxoplasmosis (Toxo) IgG
弓形蟲病IGG
JL-FA-203
Toxoplasmosis (Toxo) IgM
弓形蟲病IGM
JL-FA-204
Thyroglobulin (TG) Positive Plasma
甲狀腺球蛋白陽性血漿
JL-FA-205
Thyroglobulin (TG) Negative
甲狀腺球蛋白陰性
JL-FA-206
Varicella-Zoster Virus (VZV) Negative
水痘-帶狀皰疹病毒陰性
JL-FA-207
Varicella-Zoster Virus (VZV) IgG
水痘-帶狀皰疹病毒IGG
JL-FA-208
Varicella-Zoster Virus (VZV) IgM
水痘-帶狀皰疹病毒IGM
JL-FA-209
West Nile Virus (WNV)
西尼羅河腦炎病毒
JL-FA-210
West Nile Virus (WNV) IgM
西尼羅河腦炎病毒IGM
美國
這項研究由心臟科副教授Reza Ardehali博士和同事進行,解決了zui近關(guān)于心臟肌肉是否具有自我再生的力量的爭論。該研究結(jié)果也對于未來研究心臟組織的再生修復(fù)損傷導(dǎo)致疾病或心臟病非常重要。這項研究結(jié)果發(fā)表于2014年5月29日的《PNAS》雜志上。
zui初人們認為心臟肌肉細胞,或心肌無法自我復(fù)制,它們的總數(shù)與出生的時候一樣。然而,在過去的二十年研究中已表明,這些心肌細胞具有有限的增殖活性,盡管科學(xué)界沒有明確給出原因以及數(shù)量。
在某種程度上,很難找到用來衡量這種潛在的細胞分裂的間接方法,有時這種方法并不準確,難以達成科學(xué)共識。有些研究組使用碳年代測定法檢測人類心肌細胞的年齡,以確定它們是否為初始胎兒發(fā)育后分裂,但這種技術(shù)的準確性有爭議。其他發(fā)表的理論表明,心臟肌肉具有一個非常高的增殖能力; zui近,許多這些論文被撤回,因為同行們無法復(fù)制這些數(shù)據(jù)。
創(chuàng)建一個直接測量的模型
為了解決測量問題,Ardehali和他的同事開創(chuàng)了稱為馬賽克分析雙標記(或MADAM)的新穎遺傳方法,*次直接測量小鼠模型的心臟細胞分裂。他們發(fā)現(xiàn)心肌細胞分裂是有限的,終身對稱的,雖然小鼠中這種明顯的現(xiàn)象很少見,但在*個月的生活后顯著減小。研究人員說,并沒有任何的干細胞參與這一過程,以及心肌細胞的分裂每年僅限于不到1%。
研究人員說,子代的心肌細胞是這種罕見的細胞分裂的產(chǎn)品也能夠分裂,這很不平常(以前沒有研究發(fā)現(xiàn)過這種現(xiàn)象)??茖W(xué)家發(fā)現(xiàn),細胞分裂的速度并沒有隨著小鼠心肌梗塞誘導(dǎo)的一個修復(fù)反應(yīng)而提高。
這是顯示心臟再生力量非常有限的zui有說服力的和直接的方式之一, Ardehali說。 這是一個非常令人興奮的發(fā)現(xiàn),因為我們希望利用這些知識zui終能夠使心臟組織再生。其目的是確定參與心肌細胞對稱分裂的分子途徑,以及在疾病或受傷后使用它們來誘導(dǎo)再生補充心臟肌肉組織。
人類的免疫系統(tǒng)是非常復(fù)雜的,它有著大量不同的細胞具有各種各樣的功能,這確保侵入的微生物如病毒或細菌能夠迅速地使之無害并保持整個機體的健康。
免疫系統(tǒng)還包括自然殺傷細胞(NK細胞),其識別并消除腫瘤或病毒感染的細胞。因此,NK細胞對抗人體自身的應(yīng)激細胞以防止它們成為一個潛在的危險。然而,這種承擔是有風險性的。其他的免疫細胞 特異性殺傷細胞,也被稱為CD8 + T細胞,響應(yīng)于病毒感染時不斷地繁殖和變得成熟,也可以表現(xiàn)出應(yīng)激癥狀,從而可能終結(jié)在NK細胞的名單上。
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二維碼掃一掃
【公司名稱】 廣州健侖生物科技有限公司
【】 楊永漢
【】
【騰訊 】 2042552662
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號二期2幢101-3室
【企業(yè)文化】
The study, conducted by Dr. Reza Ardehali, an associate professor of cardiology, and colleagues resolved the recent controversy over whether the heart muscle has the power to regenerate itself. The results of this study are also of great importance for future studies on regenerative repair of cardiac tissue leading to disease or heart disease. The study was published in the May 29, 2014 issue of PNAS.
Initially, people thought that heart muscle cells, or myocardium, could not replicate themselves, and their total number was the same as when they were born. However, in the past two decades of studies, it has been shown that these cardiomyocytes have limited proliferative activity despite the fact that the scientific community has not clearly given the reason and the quantity.
To some extent, it is difficult to find an indirect way to measure this potential cell division, which is sometimes not accurate enough to reach a scientific consensus. Some groups use carbon dating to test the age of human cardiomyocytes to determine whether they are post-embryonic developmental fissures, but the accuracy of this technique is controversial. Other published theories show that cardiac muscle has a very high proliferative capacity; recently, many of these papers have been withdrawn because of their inability to replicate these data.
Create a model for direct measurement
In order to solve the measurement problem, Ardehali and his colleagues pioneered a novel genetic approach called mosaic analysis double labeling (or MADAM), the first direct measurement of cardiac cell division in mouse models. They found that cardiomyocyte division was limited and life-long symmetrical, although this notable phenomenon in mice was rare but significantly reduced after the first month of life. The researchers said that no stem cells involved in this process, and myocardial cell division is limited to less than 1% per year.
It is not uncommon for researchers to say that offspring of cardiomyocytes are the rare products of cell division that divide (this has not been done before). Scientists found that the rate of cell division did not increase with a repair response induced by myocardial infarction in mice.
"This is one of the most persuasive and direct ways to show that the power of heart regeneration is very limited," Ardehali said. "This is a very exciting finding because we hope to eventually use this knowledge to regenerate heart tissue and its purpose is to identify the molecular pathways involved in the symmetrical division of cardiomyocytes and their use in the event of illness or injury to induce regenerative heart replenishment Muscle tissue. "
The human immune system is very complex. It has a large number of different cells that have a variety of functions that ensure that invading microbes, such as viruses or bacteria, can quickly be rendered harmless and maintain the health of the entire body.
The immune system also includes natural killer cells (NK cells) that recognize and eliminate tumor or virus-infected cells. Therefore, NK cells fight the body s own stress cells to prevent them from becoming a potential danger. However, this commitment is risky. Other immune cell-specific killer cells, also known as CD8 + T cells, may also display stress symptoms in response to continued multiplication and maturation of the virus infection and may thus end up on the NK cell list .