1.Update on the side effects of antithyroid drugs
Chinese Journal of Endocrinology and Metabolism 2011;27(6):529-532
Antithyroid drugs(ATD)is the main treatment for hyperthyroidism and its adverse reactions have been much concerned by physicians. Methimazole(MMI)and propylthiouracil(PTU)are the two common antitithyroid drugs used currently. Generally, the ATD are safe and effective, though their clinical adverse reactions are also relatively common. The toxic effects include liver damage and leukocytopenia, antineutrophil cytoplasmic antibody-associated pulmonary small-vessel vasculitis, hypoglycemia, allergic reactions, muscle impairment,and so on. They are usually reversible and disappear spontaneously when the drug is discontinued. However,the serious rare side effects can also occur and there may have potentially deadly threatening effects which need to be cautious for the clinicians. MMI is usually preferred over PTU because it has significantly fewer side effects. And unlike the dose-dependent side effects of MMI, there has no significant correlation between adverse reaction and drug dosage in using PTU. Moreover, PTU has more severe hepatotoxity than MMI, even fatal liver impairment and liver failure. The risk of liver damage from PTU is an important concern, particularly in children. For this reason, MMI is the first choice for treating children with hyperthyroidism.
3.Discussion and Suggestion on the Regulation of Testing Related Work in Drug Quality Sampling and Testing Regulation
China Pharmacist 2016;19(10):1941-1942
Objective:To improve the work of drug quality sampling and testing. Methods:The regulation of testing related work in Drug Quality Sampling and Testing Regulation was analyzed and discussed. Results and Conclusion: Some suggestions were pro-vided in order to improve the regulation of testing work in Drug Quality Sampling and Testing Regulation.
4.Early identification and treatment of parathyroid carcinoma
Chinese Journal of Endocrinology and Metabolism 2014;30(4):362-364
Parathyroid carcinoma is a rare endocrine tumor.Clinical manifestations are varied with multiple organs involved,mainly due to hypercalcemia.So far the etiology and pathogenesis of parathyroid carcinoma are still unclear and preoperatively diagnosis is difficult.Technetium-99 m sestamibi scan and ultrasound can help to find the early lesions.Complete surgical resection with suspicious involved lymph nodes is the recommended treatment.Parathyroid carcinoma is insensitive to chemotherapy and radiotherapy.New immune therapy yields unsure efficacy.Therapeutic effect and prognosis mainly depend on primary surgical resection of the tumor.The disease recurs in more than 50% of patients with poor prognosis.
7.Single-center prospective study of serum procalcitonin concentrations in children with infectious diseases
Yexin LIN ; Chao CHENG ; Jiujun LI
International Journal of Pediatrics 2015;42(2):218-221
Objective To explore the change of serum procalcitonin (PCT)in infectious diseases and the relationship between PCT and the severity of illness in children.Methods This was a single-center prospective study of serum procalcitonin concentration in children with infectious diseases.Ninty-five children with infectious diseases (mycoplasma infection 30 cases,viral infection 30 cases,bacterial infection 35 cases),hospitalized in PICU of Shengjing Hospital from April 2011 to April 2013,were divided into three groups:non-serious group(64 cases),serious group(20 cases)and very serious group(11 cases)according to pediatric critical illness score(PCIS).Bacterial infectious patients were divided into two groups:gram positive bacterial group(20cases),gram negative bacterial group(15 cases).Twenty children of non-infectious diseases during the same period were selected as the control group.Serum PCT levels were detected by using VIDAS BRAHMS PCT detection system(rapid semi-quantitative PCT test).Laboratory detection was conducted in Department of Laboratory Medicine,Shengjing Hospital of China Medical University.Results The serum PCT levels of the control,the bacterial infection,virus infection,and mycoplasma infection group were (0.41 ± 0.34) μg/L,(2.56 ± 0.38)μg/L,(0.52 ±0.44) μg/L and(0.21 ±0.10) μg/L.The serun PCT levels higher than or equal to 0.5 μg/L were defirned as positive.There was significant difference in PCT positive rate between bacterial infection group and the control grouP(x2 =28.05,P <0.05).The serum PCT levels of children with infectious diseases were higher than those of non-infection group,mycoplasma infection group and virus infection group(P < 0.05).Besides,the PCT value of gram negative bacillus infection group was also obvious higher than gram positive infection group.There was no significant difference among the non-infection group,mycoplasma infection group and virus infection group(P > 0.05).There was significant negative correlation between the serum PCT concentration and the PCIS score in children with infectious diseases (r =-0.579 ~-0.793,P < 0.05).The higher concentration of PCT in children with the infectious diseases indicated higher severity illness scores,more complications,and longer length of hospital stay.Conclusions PCT may provide an informative and sensitive molecular marker for pathogen identification (bacterial infection,pneumonia mycoplasma infection or viral infection).In the early diagnosis of infectious disease,PCT assay can help predict the severity of the disease.
8.Alteration of TRPM8 in Dorsal Root Ganglion in Rat Model of Neuropathic Pain
Lin SU ; Chao WANG ; Guolin WANG
Tianjin Medical Journal 2010;38(1):36-39,后插3
Objective: To investigate the changes of TRPM8 expression in dorsal root ganglion(DRG) in the rat model of chronic constriction injury(CCI) of the sciatic nerve. Methods: Seventy-two male SD rats weighing 250~280 g were randomly divided into 2 groups (n = 36 each): group I (CCI) and group II (sham operation). The threshold of cold hyperalgesia, heat hyperalgesia and mechanical hyperalgesia were measured before operation (baseline) and at 1, 4, 7, 10 and 14 d after operation. Six rats were killed at each time point in each group. The L5 DRGs ipsilateral to nerve injury were dissected out for determination of transient receptor potential melastatin 8(TRPM8) by immunohistochemical assay. Results: The thresholds of cold, thermal and mechanical stimuli started to decrease at 4 d after CCI in operation group and maintained at a relatively low level until the end of experiment. The cold and thermal hyperalgesia peaked at 10 d after operation and mechanical hyperalgesia at 14 d. Immunohistochemical assay demonstrated that expression of TRPM8 were increased in L5DRG on the operated side significantly at 4 d after CCI and reached the peak at 10 d and was maintained at a high level until the end of experiment. Conclusion: The upregulation of TRPM8 in DRG involved in the mechanism of neuropathic pain.
10.New advancements of C3 glomerulopathy
Chang WANG ; Chao CHEN ; Lin SUN
Journal of Chinese Physician 2017;19(1):32-37
C3 glomerulopathy (C3G) is referred to disease which is out of control of complement activation,degradation and deposition,then leads to predominant C3 deposition in glomerular and glomerular injury.The study found that C3b amplification in the circulation and/or glomerular basement membrane were the key factors that cause immune disorders.Combined with clinical and experimental research,this paper mainly discusses the pathogenesis,clinical characteristics,and treatment of the disease.