Hanheller4984
Acute myocardial infarction (AMI) remains a leading cause of morbidity and mortality worldwide. Novel biomarkers are needed to identify NSTEMI in AMI patients. The study objective was to use proteomics to identify novel plasma biomarkers for STEMI and NSTEMI patients. iTRAQ analysis was performed on pooled samples from 8 healthy controls and 12 STEMI and 12 NSTEMI patients. Bioinformatics analysis identified 95 differentially expressed proteins that were differentially expressed in the plasma of AMI patients and healthy controls; 28 of these proteins were found in STEMI/Con (22 upregulated and 6 downregulated), 48 in NSTEMI/Con (12 upregulated and 36 downregulated), and 44 in NSTEMI/STEMI (11 upregulated and 33 downregulated). Protein network analysis was then performed using STRING software. Functional analysis revealed that the identified plasma proteins were mainly involved with carbon metabolism, toll-like receptor signaling pathway, and hypertrophic cardiomyopathy. Nine of the proteins (SSA1, MDH1, FCN2,trophic cardiomyopathy may be the major driving forces for cardiac damage during myocardial infarction. However, further investigations are needed to verify the mechanisms involved in the development of AMI especially NSTEMI. Taken together, our findings lay the foundation for understanding the molecular mechanisms underlying the pathogenic processes of AMI, and suggest potential applications for specific biomarkers in early diagnosis and determination of prognosis.Hibernation is an energy-saving and adaptive strategy adopted by leech, an important medicinal resource in Asia, to survive low temperature. Reversible protein phosphorylation (RPP) plays a key role in the regulation of mammalian hibernation processes but has never been documented in freshwater invertebrate such as leech. In this study, we detected the effects of hibernation on the proteome and phosphoproteome of the leech Whitmania pigra. A total of 2184 proteins and 2598 sites were quantified. Deep-hibernation resulted in 85 up-regulated and 107 down-regulated proteins and 318 up-regulated and 204 down-regulated phosphosites using a 1.5-fold threshold (P less then 0.05). Proteins involved in protein digestion and absorption, amino acid metabolism and N-glycan biosynthesis were significantly down-regulated during deep-hibernation. However, proteins involved in maintaining cell structure stability in hibernating animals were up-regulated. Differentially phosphorylated proteins provided the first global pictur proteins that could be important for functionally adapt in freshwater animals.Passage of malaria parasites through mosquitoes involves multiple developmental transitions, from gametocytes that are ingested with the blood meal, through to sporozoites that are transmitted by insect bite to the host. During the transformation from gametocyte to oocyst, the parasite forms a unique transient organelle named the crystalloid, which is involved in sporozoite formation. In Plasmodium berghei, a complex of six LCCL domain-containing proteins (LAPs) reside in the crystalloid and are required for its biogenesis. However, little else is known about the molecular mechanisms that underlie the crystalloid's role in sporogony. In this study, we have used transgenic parasites stably expressing LAP3 fused to GFP, combined with GFP affinity pulldown and high accuracy mass spectrometry, to identify an extended LAP interactome of some fifty proteins. We show that many of these are targeted to the crystalloid, including members of two protein families with CPW-WPC and pleckstrin homology-like domains, respectively. TAK779 Our findings indicate that the LAPs are part of an intricate protein complex, the formation of which facilitates both crystalloid targeting and biogenesis. SIGNIFICANCE Reducing malaria parasite transmission by mosquitoes is a key component of malaria eradication and control strategies. This study sheds important new light on the molecular composition of the crystalloid, an enigmatic parasite organelle that is essential for sporozoite formation and transmission from the insect to the vertebrate host. Our findings provide new mechanistic insight into how proteins are delivered to the crystalloid, and indicate that the molecular mechanisms that underlie crystalloid function are complex, involving several protein families unique to Plasmodium and closely related organisms. The new crystalloid proteins identified will form a useful starting point for studies aimed at unravelling how the crystalloid organelle facilitates sporogony and transmission.The wild type strain Trichoderma harzianum was able to synthesize enzymes that can catalyse the hydrolysis of p-nitrophenyl-β-D-glucopyranoside (PNPGase) in glucose-limited chemostat cultures. Fructose/glucose and sucrose conditions provided low levels of PNPGase activity. To investigate whether under these conditions other enzymes were produced, a shotgun proteomics analysis of their supernatants was performed. The analysis has indicated that the different carbon sources used influenced the amounts of proteins secreted including 1,3-beta-glucanosyltransferase, alpha-1,2-mannosidase, alpha-galactosidase and glucan 1,3-beta-glucosidase. The analysis has also suggested the presence of beta-glucosidase, which could also be represented by PNPGase activity. Intracellular metabolites were quantified during PNPGase production for the condition using 20 g/L of glucose in the feed and differences were observed, indicating that intracellular glucose could be inhibiting PNPGase production. SIGNIFICANCE This work shows that sugars such as glucose, fructose/glucose and sucrose can be used as substrates for the continuous synthesis of different enzymes under carbon-limited conditions by Trichoderma harzianum. As far as we know, this is the first work about the continuous synthesis of enzymes under carbon-limited conditions suggesting that different easily assimilated carbon sources can be used to generate different enzymatic cocktails. Each enzyme or uncharacterized protein suggested by shotgun proteomics has the potential to become a promising product for biotechnological applications.
Endometriosis is a recognized cause of pelvic pain in adolescents with menstrual symptoms that significantly affect education, activity, and social interactions. We aim to provide an updated systematic review of the prevalence of endometriosis in adolescents with pelvic pain presenting for gynecological investigation.
We searched Medline, Embase, and Cinahl from 2011 to July2019.
We included cohort studies of adolescents with pelvic pain undergoing gynecological investigation. Two authors independently selected studies and extracted study characteristics and prevalence data. Methodological quality was assessed using the Critical Appraisal Skills Program for cohort studies.
This updated systematic review evaluated a total of 19 studies including 1243 symptomatic adolescents. In all, 648 of 1011 (64%) adolescents undergoing laparoscopy were found to have endometriosis. The prevalence ranged from 25% to 100%, with a mean prevalence of 64%. Thirteen studies including 381 participants categorized disease sdance. Despite recommendations to increase the awareness and knowledge of endometriosis in adolescence, minimal research has followed.
Over half of adolescents are sexually active by age 18years and represent half of sexually transmitted infections (STI). These individuals often do not obtain routine medical care, so discussing contraception at each visit becomes imperative. Our study objectives were to determine the frequency of visits before contraception was discussed/initiated, and to assess factors affecting primary care contraception provision.
A retrospective chart review (January 2009-June 2019) was conducted for preventive, follow-up, and sick visits; Title X confidential visits were excluded. Questions were asked about method at start and end of the visit. Nonparametric median tests for continuous variables and chi-squared tests for categorical variables assessed for differences for patient age, race, gender, insurance type, visit type, and provider gender. The institutional review board approved the study as exempt.
Patients (n=12,619; median=15years; 58% female) were seen in primary care clinic. Providers asked about contrassions at all visits is essential, as adolescents do not always present for yearly visits.
Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome is defined as incomplete development of Müllerian structures (uterus, fallopian tubes, proximal vagina) in an otherwise phenotypic female individual. MRKH syndrome typically presents in adolescence with primary amenorrhea, but has been diagnosed in younger patients who present with other associated abnormalities, most commonly renal and skeletal.
Here we describe a 46,XX female infant with prenatally diagnosed renal anomalies who was found to have bilateral inguinal ovarian hernias at 1month of age. Imaging of the genitourinary system revealed absence of the uterus and proximal vagina, consistent with MRKH syndrome.
This case highlights the importance of a thorough physical examination and an interdisciplinary team evaluation of infants with genitourinary anomalies, particularly when there is concern for differences in sexual development.
This case highlights the importance of a thorough physical examination and an interdisciplinary team evaluation of infants with genitourinary anomalies, particularly when there is concern for differences in sexual development.
The mind and body function in tandem across days and development, and in unique ways for individuals, but most work on the relation between personality and physical health is cross-sectional, assuming homogeneity across time and people. For instance, although neuroticism is associated with poor health, the direction of the relation and whether it characterizes all people all of the time is unclear. The goal of this study is to fill knowledge gaps concerning the person-specific, day-to-day neuroticism-health link.
A 75-occassion intensive longitudinal study was conducted in which 119 adults reported daily on 12 indicators of neuroticism and 3 symptoms of physical health. Person-specific network analyses, conducted using the multiple solutions version of group iterative multiple model estimation (GIMME-MS), were used to determine the presence, valence, daily lag, and direction of relations among the daily variables. Network features were compared within and between individuals.
Person-specific networks wever, in that "body" symptoms were more likely to predict "mind" features across people.Successful peer relations in older children depend on proficiency with banter, which in turn frequently involves verbal irony. Individual differences in successful irony interpretation have traditionally been attributed to theory of mind. Our premise was that the key factor might in fact be cognitive flexibility, that is, the ability to switch between different perspectives (here, on the same utterance). We also wished to extend the focus of previous irony studies, which have almost exclusively examined simple irony, where the literal meaning conflicts with observable physical evidence (e.g., "Great day for a picnic" when viewing a downpour). Therefore, we also examined how children interpreted more complex irony, where listeners must consider at a deeper level the common ground shared with the speakers (e.g., general knowledge/cultural common ground or information about the particular speaker). In Study 1, we found that for 6- to 8-year-olds, both cognitive flexibility and theory of mind contributed unique variance to simple irony interpretation while statistically controlling for nonverbal reasoning and structural language standardized scores.